Spears splits from boyfriend after cheating video is released

But finds a strange way to cheer herself up.

'Toxic' singer Britney Spears has called it quits on her 18 month relationship after discovering a video of him cheating on her was being shopped around Hollywood.

The 32-year-old singer - who is currently performing her 'Piece of Me' residency at Planet Hollywood in Las Vegas - is said to have been left "heartbroken" by the revelations.